./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2275370066 <...> Warning: Permanently added '10.128.10.34' (ED25519) to the list of known hosts. execve("./syz-executor2275370066", ["./syz-executor2275370066"], 0x7ffc7a973b50 /* 10 vars */) = 0 brk(NULL) = 0x55559100f000 brk(0x55559100fd00) = 0x55559100fd00 arch_prctl(ARCH_SET_FS, 0x55559100f380) = 0 set_tid_address(0x55559100f650) = 5065 set_robust_list(0x55559100f660, 24) = 0 rseq(0x55559100fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2275370066", 4096) = 28 getrandom("\xf5\x2f\x5b\xe6\xb9\x3e\x15\x5d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55559100fd00 brk(0x555591030d00) = 0x555591030d00 brk(0x555591031000) = 0x555591031000 mprotect(0x7fbc47262000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 [ 64.050005][ T5065] ------------[ cut here ]------------ [ 64.055670][ T5065] verifier backtracking bug [ 64.055727][ T5065] WARNING: CPU: 1 PID: 5065 at kernel/bpf/verifier.c:3714 __mark_chain_precision+0x7027/0x7520 [ 64.071746][ T5065] Modules linked in: [ 64.075660][ T5065] CPU: 1 PID: 5065 Comm: syz-executor227 Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0 [ 64.086172][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 64.098095][ T5065] RIP: 0010:__mark_chain_precision+0x7027/0x7520 [ 64.104751][ T5065] Code: 8b e8 5d f0 b0 ff 90 0f 0b 90 90 e9 7d f2 ff ff e8 3e 17 ee ff c6 05 63 74 ca 0d 01 90 48 c7 c7 80 aa b0 8b e8 3a f0 b0 ff 90 <0f> 0b 90 90 e9 5a f2 ff ff e8 1b 17 ee ff c6 05 41 74 ca 0d 01 90 [ 64.124936][ T5065] RSP: 0018:ffffc90003936ac0 EFLAGS: 00010246 [ 64.131652][ T5065] RAX: a69d797a9286f500 RBX: ffff88807ae45600 RCX: ffff8880219e0000 [ 64.139895][ T5065] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 64.148154][ T5065] RBP: ffffc90003936d10 R08: ffffffff8157cc12 R09: 1ffff110172a51a2 [ 64.157025][ T5065] R10: dffffc0000000000 R11: ffffed10172a51a3 R12: 0000000080000000 [ 64.166457][ T5065] R13: 0000000000000010 R14: 0000000000000001 R15: ffff88807ae40000 [ 64.175113][ T5065] FS: 000055559100f380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 64.184950][ T5065] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.191851][ T5065] CR2: 0000000031bcc388 CR3: 0000000074486000 CR4: 00000000003506f0 [ 64.200977][ T5065] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.209478][ T5065] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.217564][ T5065] Call Trace: [ 64.221175][ T5065] [ 64.224150][ T5065] ? __warn+0x163/0x4b0 [ 64.228415][ T5065] ? __mark_chain_precision+0x7027/0x7520 [ 64.234434][ T5065] ? report_bug+0x2b3/0x500 [ 64.239358][ T5065] ? __mark_chain_precision+0x7027/0x7520 [ 64.245180][ T5065] ? handle_bug+0x3e/0x70 [ 64.250366][ T5065] ? exc_invalid_op+0x1a/0x50 [ 64.255338][ T5065] ? asm_exc_invalid_op+0x1a/0x20 [ 64.260968][ T5065] ? __warn_printk+0x292/0x360 [ 64.265788][ T5065] ? __mark_chain_precision+0x7027/0x7520 [ 64.271823][ T5065] ? poison_slab_object+0xa6/0xe0 [ 64.276934][ T5065] ? __pfx___mark_chain_precision+0x10/0x10 [ 64.283052][ T5065] ? __pfx_verbose+0x10/0x10 [ 64.287861][ T5065] ? __pfx_disasm_kfunc_name+0x10/0x10 [ 64.293688][ T5065] check_return_code+0xbe0/0x11e0 [ 64.299159][ T5065] do_check+0xb91f/0x10500 [ 64.303624][ T5065] ? __pfx_do_check+0x10/0x10 [ 64.308289][ T5065] ? mark_reg_not_init+0xd4/0x4b0 [ 64.313456][ T5065] ? __asan_memcpy+0x40/0x70 [ 64.318235][ T5065] ? mark_reg_not_init+0xd4/0x4b0 [ 64.323676][ T5065] do_check_common+0x14bd/0x1dd0 [ 64.328918][ T5065] bpf_check+0x136ab/0x19010 [ 64.334285][ T5065] ? __pfx_validate_chain+0x10/0x10 [ 64.339693][ T5065] ? validate_chain+0x11b/0x58e0 [ 64.344931][ T5065] ? mark_lock+0x9a/0x350 [ 64.349426][ T5065] ? validate_chain+0x11b/0x58e0 [ 64.354397][ T5065] ? __lock_acquire+0x1346/0x1fd0 [ 64.359503][ T5065] ? validate_chain+0x11b/0x58e0 [ 64.364464][ T5065] ? validate_chain+0x11b/0x58e0 [ 64.369553][ T5065] ? __pfx_bpf_check+0x10/0x10 [ 64.374365][ T5065] ? validate_chain+0x11b/0x58e0 [ 64.379389][ T5065] ? __pfx_validate_chain+0x10/0x10 [ 64.384791][ T5065] ? mark_lock+0x9a/0x350 [ 64.389550][ T5065] ? __pfx_validate_chain+0x10/0x10 [ 64.395676][ T5065] ? mark_lock+0x9a/0x350 [ 64.400293][ T5065] ? __pfx_validate_chain+0x10/0x10 [ 64.405970][ T5065] ? __lock_acquire+0x1346/0x1fd0 [ 64.411447][ T5065] ? mark_lock+0x9a/0x350 [ 64.416164][ T5065] ? __lock_acquire+0x1346/0x1fd0 [ 64.421288][ T5065] ? mark_lock+0x9a/0x350 [ 64.425820][ T5065] ? __lock_acquire+0x1346/0x1fd0 [ 64.431231][ T5065] ? __pfx_lock_acquire+0x10/0x10 [ 64.436294][ T5065] ? ktime_get_with_offset+0x105/0x330 [ 64.441914][ T5065] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 64.447940][ T5065] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 64.455014][ T5065] ? ktime_get_with_offset+0x105/0x330 [ 64.460616][ T5065] ? seqcount_lockdep_reader_access+0x157/0x220 [ 64.467085][ T5065] ? lockdep_hardirqs_on+0x99/0x150 [ 64.472494][ T5065] ? seqcount_lockdep_reader_access+0x1d7/0x220 [ 64.478876][ T5065] ? __pfx_seqcount_lockdep_reader_access+0x10/0x10 [ 64.485650][ T5065] ? __check_object_size+0x8e/0xa00 [ 64.490967][ T5065] ? bpf_obj_name_cpy+0x18a/0x1d0 [ 64.496029][ T5065] ? bpf_lsm_bpf_prog_load+0x9/0x10 [ 64.501573][ T5065] ? security_bpf_prog_load+0x87/0xb0 [ 64.507172][ T5065] bpf_prog_load+0x1667/0x20f0 [ 64.512310][ T5065] ? __pfx_bpf_prog_load+0x10/0x10 [ 64.517558][ T5065] ? __pfx___might_resched+0x10/0x10 [ 64.522996][ T5065] ? __might_fault+0xc6/0x120 [ 64.527846][ T5065] ? bpf_lsm_bpf+0x9/0x10 [ 64.532498][ T5065] ? security_bpf+0x87/0xb0 [ 64.537260][ T5065] __sys_bpf+0x4ee/0x810 [ 64.541799][ T5065] ? __pfx___sys_bpf+0x10/0x10 [ 64.547325][ T5065] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 64.554923][ T5065] ? exc_page_fault+0x585/0x890 [ 64.560399][ T5065] __x64_sys_bpf+0x7c/0x90 [ 64.565016][ T5065] do_syscall_64+0xfb/0x240 [ 64.570048][ T5065] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 64.575980][ T5065] RIP: 0033:0x7fbc471ef469 [ 64.580585][ T5065] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 64.601158][ T5065] RSP: 002b:00007ffe43f39548 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 64.610109][ T5065] RAX: ffffffffffffffda RBX: 00007ffe43f39728 RCX: 00007fbc471ef469 [ 64.618206][ T5065] RDX: 0000000000000090 RSI: 0000000020000600 RDI: 0000000000000005 [ 64.627378][ T5065] RBP: 00007fbc47262610 R08: 0000000000000000 R09: 0000000000000000 [ 64.635774][ T5065] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 64.643977][ T5065] R13: 00007ffe43f39718 R14: 0000000000000001 R15: 0000000000000001 [ 64.652329][ T5065] [ 64.655602][ T5065] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 64.663146][ T5065] CPU: 1 PID: 5065 Comm: syz-executor227 Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0 [ 64.673222][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 64.683468][ T5065] Call Trace: [ 64.687091][ T5065] [ 64.690010][ T5065] dump_stack_lvl+0x1e7/0x2e0 [ 64.696203][ T5065] ? __pfx_dump_stack_lvl+0x10/0x10 [ 64.701629][ T5065] ? __pfx__printk+0x10/0x10 [ 64.706321][ T5065] ? vscnprintf+0x5d/0x90 [ 64.710741][ T5065] panic+0x349/0x860 [ 64.714834][ T5065] ? __warn+0x172/0x4b0 [ 64.719693][ T5065] ? __pfx_panic+0x10/0x10 [ 64.724196][ T5065] __warn+0x31e/0x4b0 [ 64.728284][ T5065] ? __mark_chain_precision+0x7027/0x7520 [ 64.734560][ T5065] report_bug+0x2b3/0x500 [ 64.739272][ T5065] ? __mark_chain_precision+0x7027/0x7520 [ 64.745296][ T5065] handle_bug+0x3e/0x70 [ 64.750164][ T5065] exc_invalid_op+0x1a/0x50 [ 64.754951][ T5065] asm_exc_invalid_op+0x1a/0x20 [ 64.760099][ T5065] RIP: 0010:__mark_chain_precision+0x7027/0x7520 [ 64.766812][ T5065] Code: 8b e8 5d f0 b0 ff 90 0f 0b 90 90 e9 7d f2 ff ff e8 3e 17 ee ff c6 05 63 74 ca 0d 01 90 48 c7 c7 80 aa b0 8b e8 3a f0 b0 ff 90 <0f> 0b 90 90 e9 5a f2 ff ff e8 1b 17 ee ff c6 05 41 74 ca 0d 01 90 [ 64.787009][ T5065] RSP: 0018:ffffc90003936ac0 EFLAGS: 00010246 [ 64.793263][ T5065] RAX: a69d797a9286f500 RBX: ffff88807ae45600 RCX: ffff8880219e0000 [ 64.801806][ T5065] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 64.810666][ T5065] RBP: ffffc90003936d10 R08: ffffffff8157cc12 R09: 1ffff110172a51a2 [ 64.818940][ T5065] R10: dffffc0000000000 R11: ffffed10172a51a3 R12: 0000000080000000 [ 64.826941][ T5065] R13: 0000000000000010 R14: 0000000000000001 R15: ffff88807ae40000 [ 64.835106][ T5065] ? __warn_printk+0x292/0x360 [ 64.840081][ T5065] ? poison_slab_object+0xa6/0xe0 [ 64.845126][ T5065] ? __pfx___mark_chain_precision+0x10/0x10 [ 64.851104][ T5065] ? __pfx_verbose+0x10/0x10 [ 64.856047][ T5065] ? __pfx_disasm_kfunc_name+0x10/0x10 [ 64.861767][ T5065] check_return_code+0xbe0/0x11e0 [ 64.866806][ T5065] do_check+0xb91f/0x10500 [ 64.871343][ T5065] ? __pfx_do_check+0x10/0x10 [ 64.876480][ T5065] ? mark_reg_not_init+0xd4/0x4b0 [ 64.881780][ T5065] ? __asan_memcpy+0x40/0x70 [ 64.886376][ T5065] ? mark_reg_not_init+0xd4/0x4b0 [ 64.891690][ T5065] do_check_common+0x14bd/0x1dd0 [ 64.896645][ T5065] bpf_check+0x136ab/0x19010 [ 64.901804][ T5065] ? __pfx_validate_chain+0x10/0x10 [ 64.907285][ T5065] ? validate_chain+0x11b/0x58e0 [ 64.912634][ T5065] ? mark_lock+0x9a/0x350 [ 64.917000][ T5065] ? validate_chain+0x11b/0x58e0 [ 64.921987][ T5065] ? __lock_acquire+0x1346/0x1fd0 [ 64.927426][ T5065] ? validate_chain+0x11b/0x58e0 [ 64.932593][ T5065] ? validate_chain+0x11b/0x58e0 [ 64.938187][ T5065] ? __pfx_bpf_check+0x10/0x10 [ 64.943384][ T5065] ? validate_chain+0x11b/0x58e0 [ 64.948519][ T5065] ? __pfx_validate_chain+0x10/0x10 [ 64.953835][ T5065] ? mark_lock+0x9a/0x350 [ 64.958703][ T5065] ? __pfx_validate_chain+0x10/0x10 [ 64.964298][ T5065] ? mark_lock+0x9a/0x350 [ 64.969703][ T5065] ? __pfx_validate_chain+0x10/0x10 [ 64.975434][ T5065] ? __lock_acquire+0x1346/0x1fd0 [ 64.981276][ T5065] ? mark_lock+0x9a/0x350 [ 64.985744][ T5065] ? __lock_acquire+0x1346/0x1fd0 [ 64.990831][ T5065] ? mark_lock+0x9a/0x350 [ 64.995172][ T5065] ? __lock_acquire+0x1346/0x1fd0 [ 65.000428][ T5065] ? __pfx_lock_acquire+0x10/0x10 [ 65.005944][ T5065] ? ktime_get_with_offset+0x105/0x330 [ 65.011565][ T5065] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 65.017753][ T5065] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 65.024482][ T5065] ? ktime_get_with_offset+0x105/0x330 [ 65.030149][ T5065] ? seqcount_lockdep_reader_access+0x157/0x220 [ 65.037494][ T5065] ? lockdep_hardirqs_on+0x99/0x150 [ 65.043832][ T5065] ? seqcount_lockdep_reader_access+0x1d7/0x220 [ 65.051253][ T5065] ? __pfx_seqcount_lockdep_reader_access+0x10/0x10 [ 65.058934][ T5065] ? __check_object_size+0x8e/0xa00 [ 65.064406][ T5065] ? bpf_obj_name_cpy+0x18a/0x1d0 [ 65.069624][ T5065] ? bpf_lsm_bpf_prog_load+0x9/0x10 [ 65.074832][ T5065] ? security_bpf_prog_load+0x87/0xb0 [ 65.080385][ T5065] bpf_prog_load+0x1667/0x20f0 [ 65.085262][ T5065] ? __pfx_bpf_prog_load+0x10/0x10 [ 65.090456][ T5065] ? __pfx___might_resched+0x10/0x10 [ 65.095840][ T5065] ? __might_fault+0xc6/0x120 [ 65.101166][ T5065] ? bpf_lsm_bpf+0x9/0x10 [ 65.105939][ T5065] ? security_bpf+0x87/0xb0 [ 65.110555][ T5065] __sys_bpf+0x4ee/0x810 [ 65.115156][ T5065] ? __pfx___sys_bpf+0x10/0x10 [ 65.120602][ T5065] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 65.127297][ T5065] ? exc_page_fault+0x585/0x890 [ 65.132251][ T5065] __x64_sys_bpf+0x7c/0x90 [ 65.136983][ T5065] do_syscall_64+0xfb/0x240 [ 65.141686][ T5065] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 65.148042][ T5065] RIP: 0033:0x7fbc471ef469 [ 65.152543][ T5065] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 65.174265][ T5065] RSP: 002b:00007ffe43f39548 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 65.182886][ T5065] RAX: ffffffffffffffda RBX: 00007ffe43f39728 RCX: 00007fbc471ef469 [ 65.191159][ T5065] RDX: 0000000000000090 RSI: 0000000020000600 RDI: 0000000000000005 [ 65.199782][ T5065] RBP: 00007fbc47262610 R08: 0000000000000000 R09: 0000000000000000 [ 65.207844][ T5065] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 65.216508][ T5065] R13: 00007ffe43f39718 R14: 0000000000000001 R15: 0000000000000001 [ 65.225042][ T5065] [ 65.228623][ T5065] Kernel Offset: disabled [ 65.233532][ T5065] Rebooting in 86400 seconds..